Answers
Answer:
Enzymes are able to speed up reactions by lowering the activation energy needed for the reaction to start.
Answer:
Enzymes are biological catalysts and are able to speed up reactions as they involve a Lower activation energy needed for the reaction to occur.
Related Questions
The kinetic theory of matter states that matter is made up of tiny particles that are in
constant motion. The kinetic theory of matter is most useful in describing which of the
following?
o the relationship between mass and weight
o the relationship between mass and energy
o the relationship between a balance and a scale
the relationship between the motion of particles and their state: solids, liquids, and gases
Answers
Answer:
its D
Explanation:
have a good day
Which of the following statements best describes the relationship between * 1 point
genes and their outcomes?
Every gene influences a single trait.
Similar genes produce the same outcome in every individual.
O Every gene can be linked to one specific, predictable outcome.
The outcome of a gene is affected by the environment of the cells and the timing of
gene expression.
Answers
The outcome of a gene is affected by the environment of the cells and the timing of gene expression.
What is the role of gene in determining traits?Genes play a role in determining traits and they do not act alone because they are subject to environmental influences and gene regulation.
The expression of a gene can be affected by a variety of factors, including external environmental factors and the internal of the cell. Therefore, genes do not always produce a single, predictable outcome and their effects are often influenced by a variety of factors.
Thus, the statement "The outcome of a gene is affected by the environment of the cells and the timing of gene expression" best describes the relationship between genes and their outcomes.
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what usually accompanies a cold spell in minnesota?
Answers
Help! ASAP, this is due tomorrow and I’m struggling as this isn’t what they taught us. The question is: Explain why the bacteria shown (E. coli) have a second membrane outside the
peptidoglycan.
Answers
The second membrane protects e.coli (Gram-negative bacteria) against a harsh environment.
The outer membrane indirectly helps stabilize the inner membrane as peptidoglycan layer in Gram-negative bacteria is relatively thin than gram positive bacteria ( they have multilayer pepdtidoglycan )
The second membrane called the outer membrane helps in stabilizing bacterial cells as peptidoglycan is thinner in E.coli cells.
What is an outer membrane?A double membrane is present in gram-negative bacteria, and it provides both protection and nutrition for survival.
The outer of these membranes is known as the outer membrane (OM), and it comprises a variety of completely integrated membrane proteins that carry out a number of crucial cellular processes, including nutrition absorption, cell adhesion, cell signaling, and waste export.
Several of these outer membrane proteins (OMPs) for pathogenic strains also function as virulence factors for nutrition scavenging and evading host defense systems. OMPs are distinct from other membrane proteins in that they have a -barrel fold and can vary in size from 8 to 26 strands while still carrying out a wide range of cellular activities.
Although these OMPs play crucial roles in cell viability and pathogenicity, the precise mechanism behind their synthesis into the OM is still largely unclear.
However, during the past ten years, there has been a tremendous advancement in our understanding of the routes and processes that shape a nascent polypeptide into a functioning OMP within the OM.
Here, we will go through a few of these new discoveries that have improved our knowledge of how Gram-negative bacteria produce OMPs, from their production in the cytoplasm to their folding and insertion into the OM.
Therefore, the second membrane called the outer membrane helps in stabilizing bacterial cells as peptidoglycan is thinner in E.coli cells.
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What is one possible effect of a hurricane in Florida A. Avalanche B. Drought C. Wildfire D. Wind
Answers
Answer:
I think its D. sorry if I am wrong
Answer:
d
Explanation:
wind
Help please ASAP!
When scientists use the term "carbon footprint", they are referring to the _________ released into the atmosphere as a product from burning fossil fuels .
Select one :
1. Indirect emissions.
2.Carbon product gases .
3.Greenhouse gas emissions
4.Direct emissions .
Answers
Answer:
3 pretty sure and your welcome
As a result of an action potential, AcH is released from the axon terminal and attaches to receptors on the motor end plate. Sodium rushes in the T-tubules and all the steps occur until the muscle contracts in the leg and carry out the command transported by the motor neuron. Which gray horn is the cell body of the motor neuron located? Infer and explain if this is a positive or negative feedback
Answers
1) The cell body of the motor neuron is located in the ventral or anterior horn of the grey matter. From there, it extends to the motor unit. 2) Contraction refers to negative feedback in which the body reacts when facing a stimulus.
What is the anatomy of the spinal cord?The spinal cord is mainly composed of grey matter and white matter. The second one covers the first one.
The grey matter transversal section is composed of posterior, lateral, and anterior horns, also known as dorsal, lateral, and ventral horns, respectively.
Each type of horn contains a type of neuron.
In the posterior/dorsal horns, we can find sensory neurons that provide sensory information.In the thoracic area, we can find lateral horns with visceral motor neurons.
In the anterior/ventral horns, we can find motor neurons that extend to the skeletal muscle, which is the motor unit, to produce movement.
The motor neuron from the exposed example is located in the anterior or ventral gray horn.
This example refers to negative feedback because the neurotransmitter release causes a cascade effect that ends in muscle contraction, tending to suppress or counter the original stimuli.
Any change that might occur in the internal functioning will be countered by negative feedback to maintain homeostasis.
Negative feedback needs receptors, central control, and effectors.
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why practical sciences is often left out by teachers ?
Answers
Practical sciences are sometimes left out by teachers due to limited time and resources in educational institutions and may prioritize theoretical knowledge over practical application.
Additionally, practical sciences often require specialized equipment, facilities, or materials, which may not be readily available in schools. Moreover, teachers may feel more comfortable with traditional teaching methods and may lack the training or expertise to effectively integrate practical sciences into their curriculum.
Standardized tests and assessment frameworks that focus on theoretical concepts further discourage the inclusion of practical sciences. However, recognizing the importance of hands-on learning experiences, efforts should be made to bridge this gap and promote the integration of practical sciences into educational settings.
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A liquid's resistance to flow is called
viscosity.
Odensity
O pressure.
O tension.
Answers
Answer:
Viscosity
Explanation:
Ive had this question on quizzes many times. And viscosity was the answer.
Select the correct answer. Which of these periods contain elements with electrons in s, p, d, and f orbitals? A. periods 1–3 B. periods 1–4 C. periods 3–5 D. periods 6–7
Answers
In the periodic table, the periods represent the horizontal rows. Each period corresponds to a different principal energy level, and the elements within that period have electrons occupying specific orbitals.The correct answer is D. periods 6-7.
In periods 1-3, the elements only have electrons occupying the s and p orbitals. The d orbitals are not filled in these periods. In periods 1-4, the elements still only have electrons occupying the s and p orbitals. The d orbitals are again not filled in these periods.
In periods 3-5, the elements continue to have electrons in the s and p orbitals. However, in period 4, the d orbitals start to fill up, specifically in the transition metals. So, this option is not correct.
In periods 6-7, the elements have electrons in the s, p, d, and f orbitals. The f orbitals are filled in the lanthanide and actinide series, which are found in periods 6 and 7 respectively. Therefore, this option is correct. Thus, the correct answer is D. periods 6-7.
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How are the proces of food in human stomach
Answers
The food gets processed and digested by the stomach with the help of certain enzymes and acids which helps in breaking down of food.
The stomach is the first organ which the food reaches after traveling through the food pipe(esophagus). The stomach secretes certain enzymes (these are substances which acts like catalyst to break down proteins in an organism), digestive juices and acids in order to digest food. The periodic contraction of stomach walls also helps in churning of food.
Stomach secretes Hydrochloric acid which breaks down the food and creates an acidic medium for further digestion. The enzymes mainly Lipase, and Pepsin secreted by the cells of the stomach break down the proteins present in the food.
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The complete/correct question should be:
How is the food processed in human stomach?
complete the data table to compare and contrast the different types of dominances.
Complete
incomplete
codominance
Answers
The dominances include:
Complete Dominance - expressed in the phenotype, recessive allele is present.Incomplete Dominance - not completely dominant over the recessive allele.Codominance - expressed in the phenotype, phenotype is a combination of the two.What are these dominances?Complete Dominance: The dominant allele is expressed in the phenotype, even if the recessive allele is present. For example, if a person has the genotype for brown eyes (BB) and their partner has the genotype for blue eyes (bb), their children will always have brown eyes (Bb).
Incomplete Dominance: The dominant allele is not completely dominant over the recessive allele, and the phenotype is a blend of the two. For example, if a person has the genotype for red flowers (RR) and their partner has the genotype for white flowers (rr), their children will have pink flowers (Rr).
Codominance: Both alleles are expressed in the phenotype, and the phenotype is a combination of the two. For example, in humans, the MN blood type is determined by the codominant alleles I^M and I^N. People with the genotype I^M I^M have type M blood, people with the genotype I^N I^N have type N blood, and people with the genotype I^M I^N have type MN blood.
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Complete question:
complete the data table to compare and contrast the different types of dominances.
Complete
incomplete
codominance
TypesdescriptionexamplePossible causes of muscle soreness include all of the following except
a. overstretching.
b. from muscle fibers.
c. muscular spasms reducing blood flow.
d. insufficient lactic acid.
submit question
Answers
Answer:
d) insufficient lactic acid
Explanation:
Muscle soreness, also known as delayed onset muscle soreness (DOMS), can occur after intense or new exercise. Some of the possible causes of muscle soreness include overstretching, damage to muscle fibers, and muscular spasms that reduce blood flow.
However, insufficient lactic acid is not a possible cause of muscle soreness. In fact, lactic acid is often associated with muscle fatigue and is broken down and eliminated by the body after exercise.
Therefore, the correct answer to this question is option d: insufficient lactic acid.
What processes occur during S phase? Choose all which apply.
Cells do their normal work
Cells assess DNA replication
Cells duplicate their DNA
Cells synthesize proteins necessary for division
Cells divide their DNA into two nuclei
Answers
Answer:
I think it's only Cells duplicate their DNA
Sustainability is defined as the ability of an ecosystem to survive over time. How does biodiversity affect the sustainability of an ecosystem?.
Answers
can someone please help me I'll give you brainliest I promise boo❤️
Which layer of the atmosphere reflects radio waves back to Earth?
Mesosphere
Stratosphere
Thermosphere
Troposphere
Answers
Answer:
The correct answer is Thermosphere.
Explanation:
I had the same question before and this was the correct answer.
Do eukariota cells have mitochondria?
Answers
Do Eukaryotic Cells have Mitochondria?
The answer is YESIn addition to the nucleus, eukaryotic cells may contain several other types of organelles, which may include mitochondria, chloroplasts, the endoplasmic reticulum, the Golgi apparatus, and lysosomes.
What is a Eukaryotic cell?
A eukaryotic cell is one of two different types of cells. Organisms that are based on the eukaryotic cell are called “eukaryotes” and include plants, animals, fungi, and protists.
What is Mitochondria?
The mitochondrion (plural mitochondria) is a membrane-bound organelle found in the cytoplasm of eukaryotic cells. It is the power house of the cell; it is responsible for cellular respiration and production of (most) ATP in the cell. Each cell can have from one to thousands of mitochondria. Mitochondria also contain extranuclear DNA that encodes a number of rRNAs, tRNAs, and proteins.
You are the senior software engineer at a start-up company developing an exciting new product that will allow salespeople to generate and email sales quotes and customer invoices from their smartphones.
Your company’s sales force has led a major corporation to believe your product will be available next week. Unfortunately, at this point, the software still contains quite a few bugs. The leader of the testing group has reported that all of the known bugs appear to be minor, but it will take another month of testing for his team to be confident the product contains no catastrophic errors.
Because of the fierce competition in the smartphone software industry, it is critical that your company be “first to market.” To the best of your knowledge, a well-established company will release a similar product in a few weeks. If its product appears
first, your start-up company will probably go out of business.
1. Should you recommend release of the product next week?
2. Who will benefit if the company follows your recommendation?
3. Who will be harmed if the company follows your recommendation?
4. Do you have an obligation to any group of people that may be affected by your decision?
5. What additional information, if any, would help you answer the previous
Answers
As a senior software engineer, I cannot recommend the release of a product with known bugs, as it could cause harm to users and damage the reputation of the company. Therefore, I would suggest delaying the release until the testing team is confident that the product is free of catastrophic errors.
If the company follows my recommendation, customers who purchase the product will benefit from a more stable and functional software product.
If the company releases a buggy product, customers could be harmed by losing trust in the product and potentially experiencing financial or other types of losses. The company's reputation could also be harmed, leading to potential harm to the company's employees and shareholders.
As a professional, I have an obligation to act in the best interest of the customers and the company. This means ensuring that the product is of high quality and meets customer expectations, even if it means delaying the release.
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In the late 19th century, Giovanni Schiaparelli observed the planet Mars with a telescope. He detected lines across the surface of Mars, which he called
"channels." This word was translated into English as "canals." Then, the astronomer Percival Lowell drew maps depicting a fake Martian civilization. Later
observations with better telescopes showed that there are no canals on Mars. How was scientific knowledge of Mars open to change?
O A New evidence could also be interpreted as canals.
8. New evidence showed Martian civilization was possible.
OC. New evidence did not support the earlier interpretations of observations.
OD. New evidence was insufficient to confirm or deny the earlier observations.
Answers
Answer:
oPtion C is correct.
Explanation:
Scientific knowledge is open to change because it is based on the systematic and ongoing process of observation, experimentation, and analysis. As new evidence becomes available, scientists reassess their theories and hypotheses to align with the most accurate and current understanding of the subject.
In the case of Giovanni Schiaparelli's observations of Mars, his initial interpretation of the lines on the planet's surface as "channels" was later translated into English as "canals." Percival Lowell further popularized this idea by drawing maps depicting a fictional Martian civilization with a network of canals.
However, as technology improved and more detailed observations of Mars were made with better telescopes, it became clear that there were no actual canals on the planet. The new evidence did not support the earlier interpretations of observations, indicating that the existence of Martian canals was a misinterpretation or a product of human imagination.
This example demonstrates how scientific knowledge can evolve and change based on new evidence that challenges or contradicts previous ideas. It highlights the importance of critical evaluation, rigorous experimentation, and openness to revising theories in the face of new information.
What kind of food do tigers eat?
Answers
Please help and I will give brainlest!!
use the image to answer the question
This image of a roller coaster is designed to show important information about potential and kinetic energy. One of these labeled pieces of information is incorrect. Which information is wrong, and why?
A. The spot with the “maximum kinetic energy” should be on the lowest point of the roller coaster, at the far left side on the bottom.
B. The spot marked “maximum gravitational potential energy” should be on the lowest point of the roller coaster, at the far left side on the bottom.
C. The roller coaster would only have kinetic energy at the point labeled “gravitational potential energy and kinetic energy.”
D. The roller coaster would only have potential energy at the point labeled “gravitational potential energy and kinetic energy.”
Answers
According to the scenario of the Roller coaster, the one label piece of information that is incorrect is the roller coaster would only have kinetic energy at the point labeled “gravitational potential energy and kinetic energy.” Thus, the correct option for this question is C.
What is Kinetic energy?Kinetic energy may be defined as a type of energy that is significantly acquired by motion. It is energy that is possessed by an object or thing due to its motion. So, this energy is also known as energy due to motion.
According to the context of this question, the kinetic energy is stored throughout the roller coaster except for the point "maximum gravitational potential energy."
So, the option is fairly untrue or incorrect because it is saying that the roller coaster would only have kinetic energy at the point labeled “gravitational potential energy and kinetic energy.” While kinetic energy is found to be highest at the point of "maximum kinetic energy."
Therefore, the correct option for this question is C.
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Which base does Cytosine pair with?
A. Adenine
B. Guanine
C. Uracil
D. Thymine
Answers
Cytosine, a nitrogenous base found in DNA and RNA, pairs with guanine. The correct answer is option B.
This pairing is based on the complementary base pairing rule in which cytosine forms three hydrogen bonds with guanine. The other base pairs in DNA are adenine with thymine, and in RNA, adenine pairs with uracil. The complementary base pairing is crucial for DNA replication and transcription processes. Cytosine and guanine, along with adenine and thymine/uracil, form the base pairs that make up the rungs of the DNA double helix structure.Understanding base pairing is fundamental to understanding the structure and function of nucleic acids. Therefore, the correct answer is option B.For more questions on DNA
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Cytosine pairs with Guanine.
Explanation:The base Cytosine pairs with the base Guanine in DNA. This base pairing is a key component of the double-stranded DNA structure.
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the breakdown of phospho-creatine by creatine kinase
generates ATP more rapidly than any other mechanism
occurs in the cytosol or requires oxygen
Answers
The breakdown of phospho-creatine by creatine kinase neither occurs in the cytosol (cytoplasm) nor requires oxygen.
What is creatine kinase?Creatine kinase (CK) is a crucial catalytic enzyme required to catalyze the conversion of phosphocreatine.
During this process of conversion, ATP (which is considered the energy coin of the cells) is generated.
Creatine kinase (CK) is a fundamental enzyme to produce ATP in a quick mode and thus generate energy.
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Day one: Teacher will submerge one egg in Vinegar Solution overnight. One egg is left alone in the beaker labeled as the control egg. Why does an experiment need a control egg?
Answers
Answer:
A scientific control is an experiment or observation designed to minimize the effects of variables other than the main or independent variable.
Explanation:
This increases the reliability of the results.
A postsynaptic neuron has an RMP of -70mV and a typical threshold of -55mV. It has three presynaptic inputs-from neurons X, Y, and Z. Stimulation of
neuron X causes the postsynaptic neuron to depolarize by 0.5 mV. When X and Y are stimulated simultaneously, the postsynaptic neuron depolarizes by
1 mV, If X fires 10 times and Y fires 10 times the result will be …
Multiple Choice
a subthreshold summation.
presynaptic inhibition.
threshold is reached and an AP is fired.
many APs are fired.
the membrane depolarizes.
Answers
When X fires 10 times and Y fires 10 times, the result will be a subthreshold summation.
Subthreshold summation happens when two or more presynaptic inputs that are sub-threshold (i.e., they cannot create an action potential) combine their effects on the postsynaptic neuron.
Here, the postsynaptic neuron has an RMP of -70mV and a typical threshold of -55mV. When neuron X is stimulated, it depolarizes by 0.5 mV.
When X and Y are stimulated simultaneously, the postsynaptic neuron depolarizes by 1 mV, which is sub-threshold (below -55mV).
Therefore, when X fires 10 times and Y fires 10 times, the postsynaptic neuron will experience subthreshold summation and no action potential will be fired.
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Why do regions closer to the equator have warmer climates?
Answers
Answer:
Because the equator is closer to the sun
Answer:
Regions closer to the equator are warmer because it is closer to the sun. The equator gets the suns rays directly and in a higher amount whereas the poles are colder because the sun rays are farther with less amount of sunlight.
Identify one misconception about the theory of evolution.
Answers
Using natural selection, evolution is the process by which a species' characteristics change over several generations. The three constraints of Darwin's hypothesis concern the beginning of DNA, the unchangeable intricacy of the cell, and the lack of momentary species.
When a species splits into multiple new forms as a result of a shift in the environment that opens up new resources or introduces new environmental obstacles. Darwin's finches on the Galapagos Islands have created different molded snouts to exploit the various types of food accessible on various islands.
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Water can break down some minerals in a rock, changing them into new substances. This process is an example of?
O A. mechanical weathering
OB. aquifer
OC. strip cropping
O D. chemical weathering
Answers
Answer:
D. chemical weathering.
Explanation:
Chemical weathering is a process in which rocks and minerals are broken down into new substances through chemical reactions with water, air, and other agents. This type of weathering differs from mechanical weathering, which involves the physical breakdown of rocks and minerals through processes such as frost wedging, abrasion, and unloading.
In chemical weathering, water reacts with minerals in a rock to dissolve or alter their chemical composition. For example, minerals containing iron can react with oxygen in water to form rust, while minerals containing calcium can react with carbon dioxide to form calcium carbonate. These reactions can change the mineral content of a rock, altering its physical and chemical properties. Over time, this can lead to the physical breakdown of the rock and the formation of new minerals and substances.
Based on the information provided about the mouse model, calculate how many times more sensitive the original ART-S
Plasmodium strain is to artesunate than is the ART-R
strain.
Answers
There is no mention of the mouse model or the specific Plasmodium strains stated in the inquiry.
What is the artesunate pharmacology?Pharmacology for the first management of severe malaria in both adult and paediatric patients, artesunate is recommended. Using structured datasets, create, train, and verify predictive machine-learning models. Avoid adverse drug events that could be fatal and enhance clinical decision support.
What is the mechanism of action of a combination therapy based on artemisinin?It is believed that artemisinin works in two steps. Intraparasitic heme-iron, which catalyses the cleavage, first activates artemisinin. The parasite may then be killed by a resultant free radical intermediate by alkylating and poisoning one or more crucial malarial proteins (s).
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How does irrigation affect ecosystem health? (A) (B) (C) (D) P Irrigation uses much of the world's freshwater supplies and can also contribute to soil depletion and alter weather patterns. Irrigation is necessary to ensure the large harvests that the global population requires, and its use will only increase in the future. Irrigation can release harmful greenhouse gases such as methane and carbon dioxide into the air, contributing to climate change. Irrigation can increase the content of nitrogen and phosphorous in soil and water to dangerous levels, harming animals and plants in the ecosystem.
Answers
Option (D) is the proper response because irrigation can raise the amounts of nitrogen and phosphorus in soil and water to risky levels, affecting ecosystem animals and plants.
What impact does irrigation have on the environment?The potential over-extraction of groundwater for irrigation has the potential to have direct detrimental environmental effects (withdrawing water in excess of the recharge rate). This may cause the water table to drop, land to sink, water quality to deteriorate, and saltwater intrusion in coastal areas.
What impact does irrigation have on water use?Compared to sprinkler irrigation, flood irrigation loses less water to evaporation, but more water may be lost through runoff in the fields. The major reason we parameterize the irrigation techniques is to reflect their unique water use effectiveness.
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